EP 0621162 B1 20040825 - Method of finding control point in anti-lock brake system for vehicles
Title (en)
Method of finding control point in anti-lock brake system for vehicles
Title (de)
Verfahren zum Auffinden eines Steuerungspunktes in einem Antiblockiersystem für Kraftfahrzeuge
Title (fr)
Méthode pour trouver un point de commande d'un système de freinage antibloquant pour véhicules
Publication
Application
Priority
- JP 13150493 A 19930421
- JP 24763293 A 19930825
Abstract (en)
[origin: EP0621162A2] In an anti-lock brake system mounted on a vehicle wherein when the vehicle is braked in an emergency during running, an increase in the road surface friction force or road surface friction coefficient owing to an increase in the brake pressure is detected by a road surface friction force detecting device or road surface friction coefficient detecting device. The optimum control start point associated with an increase in the signal value of the road surface friction force F or road surface friction coefficient mu provided by the road surface friction force detecting device or road surface friction coefficient detecting device is decided by using a decrease in the wheel speed, i.e., by using the wheel speed omega or d omega /dt. Thereafter, from the point where the specified value of control based on F or mu , or dF/dt or d mu /dt, the brake pressure is moved from the pressure increasing mode to the pressure retaining or decreasing mode. <IMAGE>
IPC 1-7
IPC 8 full level
B60T 8/172 (2006.01); B60T 8/1763 (2006.01)
CPC (source: EP)
B60T 8/172 (2013.01); B60T 8/17636 (2013.01); B60T 2210/12 (2013.01); B60T 2220/04 (2013.01)
Citation (examination)
EP 0363570 A1 19900418 - JAPAN ELECTRONICS IND LTD [JP]
Designated contracting state (EPC)
DE FR GB IT SE
DOCDB simple family (publication)
EP 0621162 A2 19941026; EP 0621162 A3 19970827; EP 0621162 B1 20040825; DE 69433960 D1 20040930; DE 69433960 T2 20050901
DOCDB simple family (application)
EP 94106258 A 19940421; DE 69433960 T 19940421